GB1067567A - Separating isotopes by electrodialysis - Google Patents
Separating isotopes by electrodialysisInfo
- Publication number
- GB1067567A GB1067567A GB31386/64A GB3138664A GB1067567A GB 1067567 A GB1067567 A GB 1067567A GB 31386/64 A GB31386/64 A GB 31386/64A GB 3138664 A GB3138664 A GB 3138664A GB 1067567 A GB1067567 A GB 1067567A
- Authority
- GB
- United Kingdom
- Prior art keywords
- compartment
- anode
- cathode
- ions
- concentrating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000000909 electrodialysis Methods 0.000 title abstract 2
- 238000011033 desalting Methods 0.000 abstract 6
- 150000002500 ions Chemical class 0.000 abstract 6
- 238000005341 cation exchange Methods 0.000 abstract 3
- 230000000155 isotopic effect Effects 0.000 abstract 3
- 239000012528 membrane Substances 0.000 abstract 3
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 abstract 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract 2
- 239000003011 anion exchange membrane Substances 0.000 abstract 2
- 150000001450 anions Chemical class 0.000 abstract 2
- 150000001768 cations Chemical class 0.000 abstract 2
- 239000003792 electrolyte Substances 0.000 abstract 2
- 229910021653 sulphate ion Inorganic materials 0.000 abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract 1
- 238000005349 anion exchange Methods 0.000 abstract 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 abstract 1
- 229920001577 copolymer Polymers 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 238000013508 migration Methods 0.000 abstract 1
- 230000005012 migration Effects 0.000 abstract 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-N sulfonic acid Chemical compound OS(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-N 0.000 abstract 1
- 239000001117 sulphuric acid Substances 0.000 abstract 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
- -1 uranyl sulphate Chemical compound 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
- B01D61/44—Ion-selective electrodialysis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D59/00—Separation of different isotopes of the same chemical element
- B01D59/38—Separation by electrochemical methods
- B01D59/42—Separation by electrochemical methods by electromigration; by electrophoresis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/02—Specific process operations before starting the membrane separation process
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Urology & Nephrology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
Isotopes, e.g. of U, Li, Ca, B, H, N, Cl or C, are separated as ions in a solution by electrodialysis in a cell comprising alternate desalting (A1 - A5 ....) and concentrating (B1 - B4 ....) compartments arranged between a cathode and an anode, each desalting compartment having an anion exchange membrane (a1 - a5 ....) on its anode side and a cation exchange membrane (c1 - c5 ....) on its cathode side and each concentrating compartment having a cation exchange membrane on its anode side and an anion exchange membrane on its cathode side, wherein the solution containing the isotopic ions is fed into an input desalting compartment (A1) and D.C. is passed between the electrodes, whereby ions of smaller mass migrate more rapidly through respective membranes to the adjacent concentrating compartment (B1, B3) than ions of larger mass and are obtained from spaced compartments. A part of the solution of each concentrating compartment may be fed (via pipe X) to the adjacent desalting compartment on the cathode (or anode) side thereof and a part of the solution of each desalting compartment may be refluxed (via pipe Y) into the second adjacent desalting compartment on the anode (or cathode) side thereof to effect further ion migration and separation. Isotopic cations and anions may be separated in the same cell, concentrating the cations in compartments on the cathode side and anions in compartments on the anode side. The exchange resins may consist of a styrene - divinyl benzene copolymer, having radicals of sulphonic, carboxylic or phosphoric acid, or hydroxyl radicals, for cation exchange, and amino or quaternary ammonium radicals for anion exchange. The polarity of the D.C. may be periodically reversed or D.C. with superposed A.C. may be employed. Examples of isotopic ions to be separated include Li6 from Li7 in an electrolyte containing LiOH, and U235 from U238 in an electrolyte containing sulphuric acid, uranyl sulphate and uranous sulphate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4031163 | 1963-08-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1067567A true GB1067567A (en) | 1967-05-03 |
Family
ID=12577056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31386/64A Expired GB1067567A (en) | 1963-08-02 | 1964-08-04 | Separating isotopes by electrodialysis |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3414500A (en) |
| DE (1) | DE1442362B2 (en) |
| GB (1) | GB1067567A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4687561A (en) * | 1982-05-13 | 1987-08-18 | Gerhard Kunz | Process and apparatus for treatment of fluids, particularly demineralization of aqueous solutions |
| US4702810A (en) * | 1984-06-27 | 1987-10-27 | Gerhard Kunz | Process and device for adding ions to liquids, particularly aqueous solutions |
| GB2265633A (en) * | 1992-03-31 | 1993-10-06 | Aquamin Co Ltd | Multicompartment electrodialyzer for desalting aqueous solutions |
| RU2125481C1 (en) * | 1995-04-07 | 1999-01-27 | Международная академия энергетики им.Альберта Эйнштейна | Method of separating ions |
| EP1186337A3 (en) * | 2000-09-08 | 2004-12-29 | Japan Atomic Energy Research Institute | Method and apparatus for lithium isotope separation |
| CN112473370A (en) * | 2020-11-09 | 2021-03-12 | 天齐锂业(射洪)有限公司 | Method for separating lithium isotope by electrodialysis |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2390491C2 (en) * | 2007-05-08 | 2010-05-27 | Вудфорд Ассошиэйтс Лимитэд | Method and installation for production of light water |
| CN109200822A (en) * | 2018-11-16 | 2019-01-15 | 天津工业大学 | A kind of method of field coupling crown ether graft polymers perforated membrane separation lithium isotope |
| CN115558790B (en) * | 2022-09-23 | 2025-03-25 | 中国科学技术大学 | A method for separating and enriching uranium from seawater, and an electrically driven membrane separation reaction system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2741591A (en) * | 1951-03-02 | 1956-04-10 | Ionics | Method of and apparatus for separating ions |
-
1964
- 1964-07-27 US US385298A patent/US3414500A/en not_active Expired - Lifetime
- 1964-07-31 DE DE19641442362 patent/DE1442362B2/en active Pending
- 1964-08-04 GB GB31386/64A patent/GB1067567A/en not_active Expired
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4687561A (en) * | 1982-05-13 | 1987-08-18 | Gerhard Kunz | Process and apparatus for treatment of fluids, particularly demineralization of aqueous solutions |
| US4702810A (en) * | 1984-06-27 | 1987-10-27 | Gerhard Kunz | Process and device for adding ions to liquids, particularly aqueous solutions |
| GB2265633A (en) * | 1992-03-31 | 1993-10-06 | Aquamin Co Ltd | Multicompartment electrodialyzer for desalting aqueous solutions |
| GB2265633B (en) * | 1992-03-31 | 1995-07-19 | Aquamin Co Ltd | Electrodialyzer |
| US5589050A (en) * | 1992-03-31 | 1996-12-31 | Aquamin Company Limited | Electrodialyzer for desalination |
| RU2125481C1 (en) * | 1995-04-07 | 1999-01-27 | Международная академия энергетики им.Альберта Эйнштейна | Method of separating ions |
| EP1186337A3 (en) * | 2000-09-08 | 2004-12-29 | Japan Atomic Energy Research Institute | Method and apparatus for lithium isotope separation |
| CN112473370A (en) * | 2020-11-09 | 2021-03-12 | 天齐锂业(射洪)有限公司 | Method for separating lithium isotope by electrodialysis |
| CN112473370B (en) * | 2020-11-09 | 2023-01-20 | 天齐锂业(射洪)有限公司 | Method for separating lithium isotope by electrodialysis |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1442362A1 (en) | 1968-10-24 |
| US3414500A (en) | 1968-12-03 |
| DE1442362B2 (en) | 1971-06-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3454490A (en) | Concentration of ions using ion selective membranes | |
| US3014855A (en) | Process of concentrating dissolved salts by electrodialysis | |
| US2923674A (en) | Process for the removal of dissolved solids from liquids | |
| US4148708A (en) | Combination ion exchange and electrodialysis fluid purification apparatus | |
| US2741591A (en) | Method of and apparatus for separating ions | |
| US2794777A (en) | Electrolytic deionization | |
| US3291713A (en) | Removal of weakly basic substances from solution by electrodeionization | |
| US2700063A (en) | Source of current | |
| GB1240710A (en) | Electrolytic separation of ions from a solution | |
| Cherif et al. | Nitric acid and sodium hydroxide generation by electrodialysis using bipolar membranes | |
| Elisseeva et al. | Demineralization and separation of amino acids by electrodialysis with ion-exchange membranes | |
| GB1067567A (en) | Separating isotopes by electrodialysis | |
| US3525682A (en) | Separation of un-ionized substances by electro-osmosis | |
| US4645625A (en) | Decontamination of a radioactive waste liquid by electrodialysis | |
| US5464514A (en) | Method for separating organic substances | |
| GB815154A (en) | Improvements relating to electrodialysis processes | |
| GB1003955A (en) | Method for continuous separation of ions | |
| GB1427689A (en) | Method for continuously converting a hydroxylamine salt into another hydroxylamine salt by electrodialysis | |
| US3425924A (en) | Method for separating and enriching isotopes | |
| US3124522A (en) | Electrodialysis processes and electro-dialysis cells | |
| US3718583A (en) | Method for the concentration of heavy metal cations using ion selective membranes | |
| US4769152A (en) | Process for removing electrolyte | |
| GB1288621A (en) | ||
| ES288212A1 (en) | Method of eliminating radioactive ionized contaminants of milk (Machine-translation by Google Translate, not legally binding) | |
| GB756854A (en) | Improvements in the recovery of cream of tartar from wine lees |